DAVID
BRUNER Assistant Professor Department of Economics Appalachian State University brunerdm@appstate.edu |
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Research My research interests consists of issues involving information
availability and/or asymmetry, belief formation, the roles of risk
preference, and conflict. Since my research interests are
motivated by behavioral issues, I primarily employ
experimental economics methods to collect data for empirical analysis.
Below are links and brief abstracts of some of my research papers.
Here
is my current
CV.
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Publications | ||
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A
common mechanism to elicit risk preferences requires a respondent to
make a series of dichotomous choices. A recurring problem with this mechanism is a frequently
observed tendency to switch from the less to the more risky choice
multiple times, multiple switching behavior. We introduce an
instructional variation which our evidence suggests practically
eliminates such behavior. We read a script emphasizing only one
decision will determine earnings before providing written instructions.
Emphasizing the incentive compatibility of the payment rule reduces
observed multiple switching behavior from 13.3% to 2.3% in one format
and from 25.8% to 6.7% in another. |
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There
are two means of changing
the expected value of a risk: changing the proabability of a reward or
changing the reward. Theoretically, the former
produces a greater change in expected utility for risk averse agents.
This paper uses two formats of a risk preference elicitation
mechanism to test this hypothesis. Subjects in our experiment, on
average, appear risk averse and, as predicted, begin choosing a
lottery over a guaranteed amount at a lower expected value in the
format that varies the probability relative to the format that varies
the reward. Both formats produce equivalent estimates of the average
risk parameter. |
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The
use of equity-based compensation is an increasingly popular means by
which to align the incentives of top management with that of
shareholders. However, recent
theoretical and empircal research suggests that the use of equity-based
compensation has the unintended
consequence of creating the incentive
to commit
managerial fraud of the type being reported in the press. This paper
reports experimental evidence showing that the amount of fraud committed by subjects is positively
correlated with the level of equity, as is the level of effort. As
well, the amount of
fraud that is committed is negatively correlated with the
probability of detection and subjects'
risk aversion. The experimental design permits the identification of
causal relations in the direction just noted.
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WORKING PAPERS |
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We conduct an experiment using
a risk preference elicitation mechanism to identify risk averse
individuals and evaluate the frequency that they choose the
stochastically dominant of two lotteries. 75.76% of risk averse and
96.15% of very risk averse subjects chose at least 7 out of 10 dominant
lotteries. Estimates of the effect of elicited risk aversion on the
number of stochastically dominant lotteries chosen are positive and
highly significant across specifications suggesting violations are
decreasing in risk aversion.
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This paper tests the Nash
equilibrium predictions of a
two-period, two-player one-armed bandit problem with publicly available
information. Public information allows individuals to learn from their
own
private outcomes and/or from the outcomes of the others. Public
information
creates an incentive to free-ride since, contrary to intuition, players
may
prefer a smaller sample size to a larger one. Subjects appear to
undervalue information,
however, behave strategically based on the value they place on
information.
When only one subject pulls the arm, it is the predicted subject at
least 96%
of the time, the others free-ride. Furthermore, subjects respond to
information
in a manner consistent with Bayesian updating with deviations being
consistent with cognitive dissonance. Estimated regression
coefficients are statistically significant and consistent with the
summarized
results.
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This paper derives the conditions under
which property rights can arise in an anarchy equilibrium. The creation
of property rights requires that players devote part of their endowment
to the public good. In the Nash equilibrium, no player contributes to
the provision of property rights protection. Therefore, players are
left with two alternatives. A king who provides property rights
protection paid for by a tax on endowments completely eliminates
conflict. However, a king who can eliminate conflict can also take the
surplus for himself. As a despotic king inefficiently taxes endowments,
players have an incentive to find a solution that keeps power in their
own hands. Thus in a social contract, players first credibly commit
part of their endowments to providing property rights and then allocate
the balance of their endowments between production and conflict. A
social contract can also drive conflict to zero. However, as the number
of players rises, the private provision of property rights through a
social contract results in positive levels of conflict and lower levels
of aggregate welfare than under a benevolent king. |
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The
failure of foreign aid to promote growth in the developing world has
received significant attention as evidence suggests that foreign
aid does not translate into investment. This research has demonstrated
that poor institutions in these developing economies (particularly with
respect to property rights) results in an inability to fully
appropriate the return to one's investment, thereby serving as a
prominent disincentive to investment. This paper presents an
experimental test of a a 2-player, one-shot game of conflict in which
we vary the strength of property rights. Our results suggest that
stronger property rights reduce conflict and increase investment. In
addition, we test the conventional wisdom that technological progress
can increase the effectiveness of aid in stimulating investment.
Contrary to intuition, we find technological progress has practically
no effect on investment and that this failure to stimulate investment
is largely due to deficiencies in property right institutions. |
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